3Com 3500 manual BcastOnly, Broadcasts only McastBcast Multicasts

288CHAPTER 10: BRIDGE PORT PARAMETERS

bridge port multicastLimit

✓3500

✓9000

✓9400

✓3900

✓9300

Sets a threshold value on a bridge port that affects the per-second forwarding rate of multicast or broadcast traffic that originates on the segment connected to that port.

Valid Minimum Abbreviation

b po m

Important Considerations

■You can use this command to configure the same setting on multiple ports simultaneously. When you specify multiple port numbers, the system prompts you to choose the setting and then applies it to all of the ports.

■A value of zero indicates that no limit is configured.

■If you want to configure a limit for a trunk, be sure to apply it to the trunk’s anchor port (lowest-numbered port) only. However, be aware that the limit that you specify applies separately to each link in the trunk, even though you only enter it once — that is, it is not an aggregate.

■For a larger array of similar options in the CoreBuilder 3500 and 9000 Layer 3 modules, see the Quality of Service (QoS) chapter in this guide (Chapter 22) and in the appropriate Implementation Guide.

Options

Prompt	Description	Possible Values	[Default]
Bridge ports	Bridge ports for which	One or more valid bridge	–
	you want to set the	port numbers
	multicastLimit

Frame type	Frame type to which
(3900, 9300,	the limit shall apply
9400, 9000 L2)
Multicast	Configurable
threshold value	parameter that limits
	the per-second receive
	rate of specified traffic.

■	BcastOnly	McastBcast
	(broadcasts only)
■	McastBcast
	(multicasts and
	broadcasts)
■	0 – 200 (K frames/sec)	0
	(3500 and 9000 L3)

■0 – 200000 (frames/sec) (3900, 9300, 9400, and 9000 L2)